.head{
    width: 1200px;
    height: 600px;
    background-color: seashell;
    margin: 0 auto;

    position: relative;
}
.ico{
    height: 50px;
    background-color: burlywood;
}
.ico span{
    display: block;
    padding: 12px;
}
.banner img{
    width: 100%;
    height: 550px;
}
.superstratum{
    width: 600px;
    height: 400px;
    position: absolute;
    float: right;
    right: 0;
    left: 550px;
    top: 100px;
}
.text{
    width: 298px;
    height: 398px;
}
.box{
    width: 200px;
    height: 300px;
    margin: 0 auto;
    margin-top: 30px;
    font-size: 20px;
}
.box .txt{
    width: 5px;
    height: 10px;
    margin: 20px;
}
.box .txts{
    width: 5px;
    height: 10px;
    margin: 80px;
}
.interface{
    width: 298px;
    height: 398px;
    float: right;
    border: 1px solid #000;
    margin-top: -400px;
}
.title{
    width: 300px;
    height: 50px;
    background-color: tan;
    border-bottom: 1px solid #000;
}
.title span{
    display: block;
    padding: 12px 116px;
}
.enter input{
    width: 270px;
    height: 30px;
    /* margin-top: 50px; */
}
.enter button{
    width: 280px;
    height: 40px;
    background-color: #0066ff;
    color: white;
    font-size: 16px;
}
button:hover{
    background-color: #99ccff;
}
.input{
    margin-top: 30px;
}
.enter span{
    float: left;
    margin-left: 15px;
}